---
id: faq-0084
title: "What fluids need regular checking or replacement?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlekiamchenry.com"
tags: ["fluids", "maintenance", "health"]
questions:
  - "Which fluids should I check?"
  - "How often do fluids need replacing?"
  - "What fluids does my Kia need?"
related: [oil-changes, coolant, transmission-fluid]
dealer: Castle Kia McHenry
---

Your Kia relies on several key fluids: engine oil, coolant, transmission fluid, brake fluid, power steering fluid, and windshield washer fluid. Each serves a critical function and has different service intervals.

Engine oil is checked most often, while transmission and coolant fluids may last 30,000-100,000 miles depending on your model. Brake and power steering fluid need periodic inspection and replacement too.

Castle Kia McHenry's Service team checks all fluids during regular maintenance and will recommend replacements based on your vehicle's needs. Questions? Call (815) 453-8566 for personalized guidance.